Dental Tribune United Kingdom

15Implant TribuneAugust 1-7, 2011United Kingdom Edition page 16DTà OsseoSpeed™ TX Profile – anatomically designed implants for sloped ridges Imagine being able to achieve 360° bone preservation around the implant, even in cases with sloped ridges. Now you can. With OsseoSpeed™ TX Profile – a uniquely shaped, patented implant, specifically designed for sloped ridge situations – you no longer have to choose between buccal and lingual marginal bone preservation and esthetics, you can have it all – 360° around the implant. As with all Astra Tech implants, OsseoSpeed™ TX Profile is based on the documented key features and benefits of the Astra Tech BioManagement Complex™ . Used in combination with patient-specific Atlantis™ abutments, you and your patients can look forward to long-term function and esthetics. For more information, please visit www.astratechdental.co.uk 79436-USX-1103©2011AstraTech Astra Tech Ltd, Brunel Way, Stonehouse, Glos. GL10 3SX. Tel: 0845 450 0586. Fax: 01453 791001, www.astratechdental.co.uk Adapting with nature is an increased risk of fracture. We observed temporary ir- ritations of the mental nerve ap- pearing as paresthesia in 90 per cent of our own patients. These irritations disappeared com- pletely within eight weeks. Clinical procedures Diagnosis Thorough clinical and radio- logical examinations are crucial preparations for this surgical procedure. In addition to the con- ventional OPG (panoramic radi- ography) (Fig 2), a three-dimen- sional examination using CT (computer tomography) or DVT (digital volume tomography) im- ages, and their evaluation with the appropriate software, is ab- solutely necessary. Therefore it is possible beforehand to get a three-dimensional image of the route of the inferior alveolar nerve in the mandible. Figure 3 shows an evaluation using Med- 3-D software. The positioning of the buc- cal bony window should be es- pecially considered when plan- ning the surgery. After having prepared the buccal bony win- dow and the implant cavity, it is of great importance to preserve enough bone in the buccal area of the implant, in order to guar- antee sufficient primary stability. Operative procedures After carrying out an insertion of the jaw ridge and the preparation of the mucoperiosteal flap, the mental foramen can be shown. This is important and enables orientation when positioning the lateral bone incision. The horizontal incision line starts approximately 3–5mm distal of the foramen. The incision depth depends on the route of the in- ferior alveolar nerve distal from the foramen. Piezo surgery is recommended for the prepara- tion of the bone incision and the latter preparation of the inferior alveolar nerve because it guaran- tees maximum safety for the soft tissue, while at the same time the risk of nerve irritation can also be reduced. After the removal of the buc- cal corticalis the nerve can be ‘We observed tem- porary irritations of the mental nerve appearing as par- esthesia in 90 per cent of our own patients. These irri- tations disappeared completely within eight weeks.’ Fig 6 Fig 7